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authorArnd Bergmann <arnd@arndb.de>2016-11-24 14:25:38 -0200
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-02-03 07:12:59 -0200
commit30f895a9e1df6a44cef6e4e0fad70762026b8512 (patch)
treeca3789ac7eecc84fe64b6408b7f5f77bf59e989b /drivers/media/common/b2c2
parent6689638025a91bd795204c01b25a561fa93f11e8 (diff)
[media] b2c2: use IS_REACHABLE() instead of open-coding it
The FE_SUPPORTED() macro is basically the same as IS_REACHABLE, except that it causes a warning with gcc-7: common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] Using IS_REACHABLE() to define it avoids the warning. Fixes: 3785bc170f79 ("[media] b2c2: break it into common/pci/usb directories") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/common/b2c2')
-rw-r--r--drivers/media/common/b2c2/flexcop-fe-tuner.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/media/common/b2c2/flexcop-fe-tuner.c b/drivers/media/common/b2c2/flexcop-fe-tuner.c
index f5956402fc69..5f10151ecec9 100644
--- a/drivers/media/common/b2c2/flexcop-fe-tuner.c
+++ b/drivers/media/common/b2c2/flexcop-fe-tuner.c
@@ -24,8 +24,7 @@
/* Can we use the specified front-end? Remember that if we are compiled
* into the kernel we can't call code that's in modules. */
-#define FE_SUPPORTED(fe) (defined(CONFIG_DVB_##fe) || \
- (defined(CONFIG_DVB_##fe##_MODULE) && defined(MODULE)))
+#define FE_SUPPORTED(fe) IS_REACHABLE(CONFIG_DVB_ ## fe)
#if FE_SUPPORTED(BCM3510) || (FE_SUPPORTED(CX24120) && FE_SUPPORTED(ISL6421))
static int flexcop_fe_request_firmware(struct dvb_frontend *fe,